.el-header,
.el-footer {
    color: #FFFFFF;
}

.el-aside {
    background-color: #D3DCE6;
    color: #333;
}

.el-main {
    background-color: #FFFFFF;
    color: #333;
}

body>.el-container {
    margin-bottom: 40px;
}

iframe {
    width:100%;
    height: 720px;
}
.left-top-title{
    font-size: 12px;
}

.box-card {
    height: 150px;
    width: 150px;
}

.main_index_chapter_point{
    margin-left: 20px;
}

.wrapper {
    display: flex;
    overflow: hidden;
}
.text {
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: justify;
    /* display: flex; */
    /*             display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical; */
    position: relative;
    line-height: 2.5;
    max-height:4.5em;
}
.text::before {
    content: '';
    height: calc(100% - 26px);
    float: right;
}
.btn{
    position: relative;
    float: right;
    clear: both;
    margin-left: 20px;
    font-size: 16px;
    padding: 0 8px;
    line-height: 24px;
    color:  #409EFF;
    cursor: pointer;
    /* margin-top: -30px; */
}
.btn::before{
    position: absolute;
    left: -5px;
    color: #333;
    transform: translateX(-100%)
}
.exp{
    display: none;
}
.exp:checked+.text{
    max-height: none;
}

.exp:checked+.text .btn::before {
    visibility: hidden; /*在展开状态下隐藏省略号*/
}
.main_index_search_input{
    width: 250px;
}

.el-progress-MainLeft-topic{
    margin-top: 10px;
}
